166536530632541 has 32 divisors (see below), whose sum is σ = 179430714777600. Its totient is φ = 154247346489600.

The previous prime is 166536530632499. The next prime is 166536530632543. The reversal of 166536530632541 is 145236035635661.

It is a cyclic number.

It is not a de Polignac number, because 166536530632541 - 2³⁴ = 166519350763357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166536530632543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58020356 + ... + 60822978.

It is an arithmetic number, because the mean of its divisors is an integer number (5607209836800).

Almost surely, 2^{166536530632541} is an apocalyptic number.

It is an amenable number.

166536530632541 is a deficient number, since it is larger than the sum of its proper divisors (12894184145059).

166536530632541 is a wasteful number, since it uses less digits than its factorization.

166536530632541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803469.

The product of its (nonzero) digits is 34992000, while the sum is 56.

The spelling of 166536530632541 in words is "one hundred sixty-six trillion, five hundred thirty-six billion, five hundred thirty million, six hundred thirty-two thousand, five hundred forty-one".